Answer:
4n -13
Step-by-step explanation:
notice that the difference between the adjacent terms is 4.
nth term is given by:
nth term = first term + (n-1) × difference -n is any number
= -9 + (n-1) × 4
= -9 + 4n -4
= 4n -13
Answer:
the slope for a is 
but in simplest form 4
the slope for b is 0
Step-by-step explanation:
hope this helped :-)
189 is 45% of 420 and 198 is 55% of 360
189 = .45x
/.45 /.45
420 = x
198 = .55x
/.55 /.55
360 = x
Answer:scalene
Step-by-step explanation:
You add them and if its 150 or lower it is scalene
Well set it up first. You get: 8.2-(-3.5) so what you do is that you first subtract 8.2-3.5=4.7. Then you want to find out weather it is negative or positive. First point out which one is bigger in this case 8.2 is bigger and a positive so your answer would be positive. Answer: +8.2 or 8.2
